package com.nio.Service;import com.nio.IService.IOrderService;import com.nio.model.CatOrder;import com.nio.repository.CatOrderMapper;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import java.util.List;@Servicepublic class OrderService implements IOrderService {    @Autowired    private CatOrderMapper orderMapper;    @Override    public List<CatOrder> getItem() {        List<CatOrder> orderList = orderMapper.selectAll();        return orderList;    }}